Dust-collector.



Y0. 853,517. PATENTED MAY 14, 1907. W. S. OSBORNE.

DUST COLLECTOR. uPLIqATIoN rum) 1120.28, 1905.

wane-sa a I aslw ni UNITED STATES PATENT OFFICE WILLIAM s. OSBORNE, OF HYDE PARK, MASSACHUSETTS, ASSIGNOR or ONE- HALF TO B. F. STURTEVANTOOMPANY, or BOSTON, MASSACHUSETTS, CORPORATION, oF-MAssAcnUsErrs.

DUST-COLLECTOR.

, Hy 'e'Park, in the county of Norfolk and Stat of Massachusetts, have invented certaiilj newgand useful Improvements in Dust- Collectors; and I do hereby declare thefolhitting to be a full, clear, and exact descri tion fo'f the invention, such as Will-,enab e othersskilled in the-,art to which'it apperto make and use thefsiame. r

' "llhe present invention relates to an im pr'qyement in dust collectors.

' against surfaces.

Theobject of the invention is to produce a dustcollector for such kinds of dust as are arated from the air oroiily-jwi'th difliculty se th gases in which t ey are entrained.

ticularly defined in 'the. claims. the'accompanyin drawingsillustrating preferred form of t taken, on the line 22 Fig. 1, Fig. 3 is a art broken away to I I igl 4 is a top plan. i '-'.In separating smoke particles, for exam le, from flue gases, it has been found that suc particles are more, easily separated when moistened, and that the separationis jfurtheiiacilitated lhhyirg impact of "the gases ,dust and other dust formed of fine particles which stir and beat preferably also exposejth'e air to the action of; 4

Qoflightniatierial. I

' Accord ng to the present invention the air ected to the action of af'numb'er of heaters the dust laden air and water-o1: moisture,so that the ,shlid. matter in the. all lsf dampened and thereby separated from the air with greater facili proyided-- with a tangenti t The dust collector illustrated in the drawingsf-is described as follows -The collector consists-.ofan upper. ortion; -1 which is prismati'c'i n shapeand a 0wer' portion'2 which is pyramrdal in shape. The ipper portion is throngl'r which the up 1' incoming enters the ;p ortion of the collector. 'The .dust I l e sat the bottom or apex of theflowe'r portion, andthe air outlet a tube extend m'g from apo1nt near the bottom of-the up- Specification of Letters Patent, Application filed December 28,1

lector enteri the 0 posite side. A cock affords means q-tln's'end the present invention consists e dust collector hereinafter described and s e invention Figure 1 aisectional elevatlon, Fig. 2 1s a sectional is also true of leather from which the dust is to be separated is sub-- action toward the periphery of the collector and are thereby separated from the air.- All jected to the beating and lmoistening' action inlet pipe 3 which are formed at the corners and which, it

Patented May 14,1907. 905. Serial Nn- 293,571.

'. per portion through the center of the top thereof. Depending from'the top. and about midway between the outlet 5 and the outer walls of the upper portion of the collector, is a hood -6, the up er part of which iscontracted so as to-a ord' a larger space hereinafter called the inlet space, near the top of the collector. This hood is prismatic. and i corresbonds in shape to the upper portion of the collector. Between the lower part of the hood-'6 and the walls of the upper part of the I eollectorare mounted a series of heaters 7 in the form of paddle wheels journaled to rotate I freely. A water pipe 9 is fixed in the top of the collector and'it extendsaround the 001-. at ones'ide and emerging at "7 fors iuttingoff' and turning on the water a when it is desired and :a cock 1 1 at the other fend'of the pipe aflords means for'drainin the pipe when it is desiredto empty it. his pipe is 'provided'with a number of small holes "in itsunder side-through which ,dro down upon the heaters 7.

7-5 water may:

e incoming dust laden air entering through the'inlet 3 whirls aroun the periph,. cry of the inlet por'tionof-the collector and, by its impact with the" u per blades, sets the heaters 7 in motion. -hese,.b'eaters, being moistened with the water dropping-upon them from above, 'beatthe airand moisten the particles of solid material carried thereby. The air; then passes downward between the- 'beatersgand continues to whirl, with reduced velocity'fin' the lower ,ordust separating f ortion; The moistened particles, beingeayierthan if dry, are carried by centrifugal c of the air passing down-through the upper part 12-tothe lower part 13 of the collector passes around the wet heaters 7 and is sub- 5; and is thereby brought to a condition inwhich any solid inatter not separated them from in the upper ortion of the collector will be deposited on t e walls of the lower 'por} tion. s 1 '5 I While it is considered that the invention is best embodied in a construction emplo .ng

roe

the-prismatic and pyramidal form as lu trated in drawings, because of; the eddies is believed, assist in the separation of the solid matter from the air, still it is to be understood that the employl'nent of a cylindrical construction is within the purview of the invention, and the invention is not limit: ed in general to the details of construction and operation of the illustratedembodiment thereof, but it may be embodied in other and inlet, a centre rotating means for beating and moistening different forms within the scope of the fol lowing claims.

Having now described the invention, What is claimed is:- p

I. A dust collector having,- in combination, a casing provided with a tangential air air-outlet, and a dust outlet,

- the air in its passage through the collector,

- scribed.

and means for supplying moisture to said rotating means, substantially asdescribed.

2 A dust collector having, in combination, .an inlet portion with a tangential air inlet, a dust separatin portion, a contracted passage way leading l rom one portion to the other,- and rotating air beating means located in such passage way, substantially as de- 3. A dust collector having, in combine '-tion, an inlet portion, a tangential air inlet, a

dustseparating portion, a contracted passage wfay leading. from one portionto the other, rota-ting ,air'bea-ting and ,moistening means a in such-passage, and Ineansfor supplying ,molsture to said beating and moistenmg means, substantially as described.

- the periphery of the casing-of axes perpenf 1 I a 3 *dicular toithe axis of the'casing, substantially 40 as described. I I r v v 5. A dust collector having, in combina5 tion, an inlet portion provided with a tangen tiaLair inlet, a. centrifu alt dust separating ,portion 'connected Witht e inlet portion by, a 4 5 contracted passageway, androtati'ng be'aters, located in thepassage-xvay and actuated by, the air passage thereth'rongli, substantially as described. i Y

'6. dust collector, having,'in. combination, a casing provided with a t'angentia'l air inlet, a central air outlet, and' a dustoutlet, a rotating beater located inthecasing and actor ated by the air, and -means' for applying moisture to the beater to moisten the air,

substantially as described.

7. A dust ..collector having, jin combination, acasing provided with a tangential'air inlet, a plurality of rotary heaters mounted l ieaimonytttiaf h afiixes a sign V ture", in pr'esence of two witnesses. 4. A dust collec or having, in combina-j l tion, a casing provided with atan ential air inlet, an,airlou-tlet, and a dust out et, and a' plurality of rotary boaters .monnted about U "man-Ian's. es eem; Wansssw I r J 

